Abstract
The responses of dry mass accumulation, NPK uptake, water use efficiency, and green pods yield characters of snap bean
plants to biofertilizer Halex-2 under four varying humic acid (HA) rates; 0 (HA0), 0.3 (HA1), 0.6 (HA2) and 1.2 (HA3) ton
ha-1
, were studied. Two field experiments were conducted, during the season of 2011 and 2012, at the Agricultural
Experiment Stations, Hada-Alsham, King Abdulaziz University, Saudi Arabia. Increasing HA rate up to 1.0 t ha-1
(HA2) led
to significant increments in the dry mass accumulation, uptake of N, P and K, green pods yield, the number of pods and water
use efficiency characters. Moreover, the results showed that inoculation of snap bean seeds by biofertilizer Halex-2
significantly increased all studied parameters of snap bean plants. Generally, the combination treatment of 1.0 t HA ha-1
+
Halex-2 was the most beneficial treatment which gave significantly higher mean value for total green pods yield ha-1
, number
of pods plant-1
and water use efficiency.
